Tuesday February 25, 2014Bell Ringer:

Find the length of the hypotenuse of each of the Right Triangles below:

c15

12

520

c

What We are Learning Today:

• To use the Pythagorean Theorem to find the missing side of a right triangle

• To determine if given sides create a right triangle

Finding a Missing Side:

• a2 + b2 = c2

• What if we know side a and side c?

Let’s Try These:

• a = 5, b = ?, c = 9

• a = ?, b = 12, c = 15

Converse of Pythagorean Theorem:• If a = 8, b = 9, and c = 12; is this

a right triangle?

• If a = 15, b = 20, c = 25; is this a right triangle?

If a2 + b2 = c2 then the triangle is a right triangle

Practice Time:

• Workbook pg. 125• Problems 1-11• Write out equations and show your

work!